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Rev Age Author Path Log message Diff
1824 6594 d 11 h decky /trunk/kernel/arch/xen32/ xen32: use writable page tables, cleanup mm  
1823 6594 d 13 h jermar /trunk/kernel/arch/sparc64/ sparc64 work.
Dump take_over_tlb_and_tt() and add its assembly language replacement.
 
1822 6594 d 17 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 6596 d 13 h decky /trunk/kernel/arch/xen32/ xen32 cleanup  
1818 6601 d 8 h decky /trunk/kernel/ make burst updates  
1817 6602 d 4 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 6602 d 13 h decky /trunk/kernel/ xen memory initialization  
1815 6602 d 14 h decky /trunk/kernel/arch/xen32/src/ fork drivers  
1814 6602 d 14 h decky /trunk/kernel/arch/xen32/include/ fork drivers  
1813 6602 d 14 h decky /trunk/kernel/arch/xen32/ xen32 hypervisor interface  
1812 6602 d 14 h decky /trunk/kernel/ move macro and cleanup  
1811 6602 d 16 h decky /trunk/kernel/arch/ unify bootstrapping  
1810 6609 d 6 h decky /trunk/kernel/arch/xen32/ remove obsolete stuff  
1809 6609 d 7 h decky /trunk/kernel/arch/xen32/ update xen32 support (most of the code is still dummy)  
1808 6609 d 8 h decky /trunk/kernel/arch/xen32/include/ fork directories  
1807 6609 d 10 h decky /trunk/kernel/arch/xen32/ fork directories  
1806 6609 d 10 h decky /trunk/kernel/arch/xen32/ fork directories  
1805 6609 d 16 h decky /trunk/kernel/arch/xen32/src/boot/ make Xen recognize the kernel image  
1804 6609 d 16 h decky /trunk/kernel/arch/xen32/ fork Xen32 makefile and linker script  
1802 6610 d 4 h decky /trunk/ cleanup and unify the build system  
1793 6612 d 17 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 6613 d 7 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.
 
1790 6613 d 11 h jermar /trunk/ Remove OpenFirmware calls from kernel/ entirely.

Switch the sparc64 port to use bootinfo.

Copy memcpy from boot/ to sparc64 kernel/ and
adjust it for memcpy_from/to_uspace.
 
1789 6613 d 14 h jermar /trunk/ Fix ofw_memmap() in boot infrastructure.
The cell size is 32-bit and not equal sizeof(ofw_arg_t).
Define architecture dependant #address-cells and #size-cells for cases
the respective properties are missing in the OpenFirmware device tree.
The algorithm now works both for ppc32 and sparc64.

Add memmap_t, screen_t and keyboard_t to sparc64 bootinfo structure.
Be more verbose during sparc64 boot.

Move ALIGN_UP to generic part of boot/.

Change header guards in several places so that they don't contain double underscore.
 
1787 6615 d 10 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1784 6616 d 8 h jermar /kernel/trunk/ Sync OpenFirmware functionality with boot.
Random cleanup.
 
1780 6622 d 11 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1777 6622 d 14 h jermar /kernel/trunk/ Make sparc64 kernel assume it is loaded by our loader.  
1776 6622 d 14 h jermar /kernel/trunk/arch/mips32/ Typos and indentation fixes for mips32 and some generic files as well.  
1774 6622 d 21 h decky /kernel/trunk/ initial support for Xen  
1770 6623 d 13 h jermar /kernel/trunk/arch/sparc64/src/mm/ Fix sparc64 to compile again.  
1769 6625 d 7 h jermar /kernel/trunk/arch/ Change cache_error exception to take istate * as a parameter.
Make cache_error() print epc in the panic message.
Do not rely on the compiler to generate 'nop' after 'beq' in atomic_add()
and put it there explicitly.
Indentation fixes and cosmetic changes.
 
1767 6630 d 18 h palkovsky /kernel/trunk/ Remove unneeded FRAME_PANIC.
Fix some things broken by last commit.
 
1766 6630 d 19 h palkovsky /kernel/trunk/ Changed frame_alloc call, cleaned a lot of stuff, fixed some not-perfectly-correct error handling.  
1762 6632 d 5 h decky /kernel/trunk/arch/ppc32/src/cpu/ ppc32 identify known CPUs  
1760 6633 d 13 h palkovsky /kernel/trunk/ Changed interface of frame_alloc/free to use address of frame instead of the pfn.
This makes it impossible to use >4GB of memory on 32-bit machines, but who cares...
 
1758 6636 d 11 h decky /kernel/trunk/arch/ppc32/src/mm/ remove ASIDs from Page Hash Table  
1756 6636 d 17 h decky /kernel/trunk/arch/ppc32/ don't use hardcoded PIC address  
1754 6636 d 17 h jermar /kernel/trunk/ Indentation and some improved comments.
Remove forgotten comment from gxemul.sh.
 
1749 6638 d 6 h decky /kernel/trunk/arch/mips32/src/ remove forgotten address translation