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Rev Age Author Path Log message Diff
1895 6521 d 20 h jermar /trunk/ More ofw_tree work and fixes.
Add ofw_tree_lookup().
Every ofw_tree_node now also contains a disambigued name which is essential for tree lookups.
 
1894 6522 d 17 h jermar /trunk/ Add balloc() (a.k.a boot allocator):
- balloc() only needs to know how to allocate memory.
- Memory allocated via balloc() is supposed to be passed to kernel and never freed by boot itself.
- make kernel aware of boot allocations

More work on OFW device tree:
- use balloc() to efficiently and safely allocate memory for the canonical copy of the device tree

sparc64 boot:
- pass OFW device tree root node pointer to kernel
 
1893 6522 d 21 h jermar /trunk/boot/ Add prototype implementation for creating canonical copy of OpenFirmware device tree.  
1881 6530 d 3 h jermar /trunk/ sparc64 work:
- find a CPU node and read its clock_frequency attribute
- implement asm_delay_loop()
- set TICK_COMPARE register according to processor frequency
- small improvements at random places

OpenFirmware work:
- two new functions for walking the device tree

Generic boot loader work:
- added basic string functions

Usual pile of indentation and formatting fixes.
 
1864 6538 d 16 h jermar /trunk/ sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64.
 
1837 6569 d 8 h jermar /trunk/ Support 24bpp framebuffers with 4 pixelbytes (each pixel aligned on 32-bits).

At least on sparc64, the OpenFirmware linebytes property specifies the number
of pixels between consecutive scan lines of the display. Fix scanilne calculation,
including possible alignment.

Add note to 8bpp pixel functions pointing out drawbacks of that mode.
 
1825 6571 d 22 h decky /trunk/boot/arch/xen32/ optional xen binary with debugging enabled  
1822 6572 d 5 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.
 
1802 6587 d 15 h decky /trunk/ cleanup and unify the build system  
1800 6587 d 16 h decky /trunk/boot/arch/ppc64/loader/ sync ppc64 with ppc32  
1799 6587 d 16 h decky /trunk/boot/arch/ppc32/loader/ fix typo  
1796 6587 d 16 h decky /trunk/boot/tools/ia64/ new place for vmaxlma  
1792 6590 d 18 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.
 
1791 6590 d 20 h jermar /trunk/boot/arch/sparc64/loader/ Switch to identically mapped stack during boot.
Put stack related and register related macros to dedicated
header files.
 
1790 6590 d 23 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 6591 d 1 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 6592 d 22 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1786 6593 d 3 h jermar /boot/trunk/arch/sparc64/silo/ Upgrade to silo-1.4.11.  
1783 6593 d 19 h jermar /boot/trunk/ Some 32-bit vs. 64-bit fixes.

Make the call to OpenFirmware client interface architecture dependent.
For instance and contrary to my previous experience, the sparc64 version of
'translate' method would not work reliably unless the Address Mask bit in the
PSTATE register is cleared during duration of the call.

sparc64 and ppc32 OpenFirmware seem to differ in details, for example, the above
mentioned method 'translate' signals success by setting the first return value
to -1 on sparc64 while on ppc32 the value is/stays (???) zero.
 
1782 6599 d 2 h jermar /boot/trunk/ Fix ofw.c to support map and translate methods even on 64-bit platforms.  
1779 6599 d 23 h jermar /boot/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1778 6600 d 1 h jermar /boot/trunk/arch/sparc64/ sparc64 is now booted by HelenOS boot loader.  
1775 6600 d 8 h decky /boot/trunk/ initial support for Xen  
1773 6600 d 17 h jermar /boot/trunk/arch/sparc64/loader/ Work on sparc64 boot loader (still inactive).  
1772 6600 d 17 h jermar /boot/trunk/genarch/ Last changes to make ofw.c work for both 32-bit and 64-bit architectures during boot.  
1771 6600 d 20 h jermar /boot/trunk/ Cleanup OpenFirmware driver and prepare it for integration with sparc64 bootloader.
Start sparc64 boot loader (now inactive and unfunctional).
 
1765 6608 d 18 h jermar /boot/trunk/arch/ppc64/loader/ Even though the ppc64 doesn't build currently, perform cleanup in the spirit of previous changes to mips32 and ppc32.  
1764 6608 d 19 h jermar /boot/trunk/ Cleanup boot infrastructure: ppc32 (and elsewhere).  
1763 6608 d 19 h jermar /boot/trunk/ Cleanup in the boot infrastructure.
This commit tries to separate generic stuff from mips32 specific stuff.
Other architectures will follow.
 
1755 6614 d 4 h decky /boot/trunk/arch/ppc32/loader/ read macio address from PCI OFW entry  
1748 6615 d 18 h decky /boot/trunk/arch/mips32/loader/ bugfix  
1747 6615 d 18 h decky /boot/trunk/ mips32 binary format choice  
1744 6615 d 19 h decky /boot/trunk/arch/mips32/loader/ use stack in unmapped segment  
1739 6616 d 2 h decky /boot/trunk/ ppc32 debug messages  
1738 6616 d 3 h decky /boot/trunk/arch/ppc32/loader/ properly place PHT on top of physical memory  
1737 6616 d 4 h decky /boot/trunk/arch/ppc32/loader/ pick the best BAT mapping  
1732 6616 d 15 h decky /boot/trunk/ fix wrong segment register value
add CONFIG_BAT define
 
1728 6616 d 16 h decky /boot/trunk/ ppc32: BAT usage is now optional
better VSID support
Page Hash Table cleanup
boot API change
 
1725 6616 d 23 h decky /boot/trunk/arch/ppc32/loader/ allocate page hash table during boot
(preliminary code, will be fixed properly later)
 
1715 6617 d 20 h decky /boot/trunk/arch/ppc32/loader/ move ppc32 four pages up