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Rev Age Author Path Log message Diff
2131 6322 d 2 h decky /branches/ add development branches  
2129 6354 d 22 h jermar /trunk/ Fix small problem in sparc64 port.

Bump version to 0.2.0.4 (Sunset).
 
2106 6371 d 5 h jermar /trunk/kernel/ Merge as_t structure into one and leave the differring parts in as_genarch_t.

Indentation and formatting changes in header files.
 
2105 6375 d 6 h decky /trunk/kernel/ move ipc structures to ipc.h  
2089 6377 d 5 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2083 6383 d 5 h decky /trunk/kernel/ typedef elimination  
2082 6383 d 6 h decky /trunk/ __asm__ __volatile__ -> asm volatile  
2079 6384 d 0 h decky /trunk/kernel/ remove some typedefs in favor of anonymous structures  
2076 6386 d 6 h jermar /trunk/kernel/ Beat the implicit illegal virtual alias created by reusing userspace frames.
In the anonymous and ELF backends, if the architecture has virtually indexed D-cache,
selectively flush cachelines belonging to the frame being freed.
This fixes Ticket #20.
 
2071 6387 d 22 h jermar /trunk/ (c) versus (C)  
2068 6395 d 5 h jermar /trunk/kernel/ Formatting and indentation fixes.  
2065 6401 d 20 h jermar /trunk/kernel/ Coding style fixes and formatting improvements.  
2056 6415 d 10 h jermar /trunk/kernel/arch/sparc64/include/ Fix mismatched byteswapping macros on sparc64.  
2054 6415 d 21 h jermar /trunk/kernel/ Fix important comment in kernel/arch/sparc64/src/proc/scheduler.c.

Improve framebuffer code.

Formatting and indentation fixes.
 
2048 6420 d 0 h jermar /trunk/ Formatting and indentation changes.  
2047 6421 d 21 h jermar /trunk/kernel/arch/sparc64/include/ Convert sparc64 critical section barriers to RMO memory model.
More portable, no confusion from documentation.
 
2046 6421 d 23 h jermar /trunk/kernel/arch/sparc64/include/ Another comment fix.  
2045 6422 d 0 h jermar /trunk/kernel/arch/sparc64/include/ Fix comment.  
2044 6422 d 0 h jermar /trunk/kernel/arch/sparc64/ On sparc64's tick interrupt, adjust the TICK_COMPARE register instead of the TICK
register. The TICK register now increments linearily and can be used by the get_cycle()
function.
 
2038 6422 d 20 h jermar /trunk/kernel/arch/sparc64/ Remove old stuff.  
2037 6422 d 20 h jermar /trunk/kernel/arch/sparc64/include/ Backout change from revision 2034.
sparc64 is not yet ready for get_cycle().
 
2034 6423 d 4 h jermar /trunk/kernel/arch/sparc64/include/ get_cycle() for sparc64.  
2025 6424 d 19 h jermar /trunk/ Coding style fixes.  
2023 6424 d 23 h decky /trunk/kernel/arch/ add dummy cycle.h  
2015 6426 d 22 h jermar /trunk/ Rework support for virtually indexed cache.
Instead of repeatedly flushing the data cache, which was a huge overkill, refuse to create an illegal address alias
in the kernel (again) and allocate appropriate page color in userspace instead. Extend the detection also to
SYS_PHYSMEM_MAP syscall.

Add support for tracking physical memory areas mappable by SYS_PHYSMEM_MAP.

Lots of coding style changes.
 
2009 6431 d 21 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2008 6433 d 22 h jermar /trunk/kernel/arch/sparc64/ Add dcache_flush() function that flushes D-Cache on sparc64.  
2007 6434 d 20 h jermar /trunk/kernel/ Introduce page colors. So far, only sparc64 uses correct page color bits. Other architectures have a dummy define
specifying zero bits for a page color.

There is a new check of page color in as_area_share(). Because of lack of support for this in the userspace, the
check has been #ifef'ed out.
 
2003 6436 d 3 h decky /trunk/kernel/arch/ cleanup endian conversion macros  
1984 6446 d 23 h jermar /trunk/kernel/arch/sparc64/ sparc64 work:
- untested support for Psycho PCI controller
 
1978 6448 d 22 h jermar /trunk/ sparc64 code to support physical memory that starts on non-zero addresses.
Still needs to be tested on systems with such setup.
 
1976 6455 d 4 h jermar /trunk/kernel/arch/sparc64/ sparc64 context does not have to include the CLEANWIN register.  
1954 6470 d 21 h jermar /trunk/ Minor changes. Some coding style fixes and also a type (tee vs. tree).
One AS -> as change.
 
1949 6475 d 5 h jermar /trunk/kernel/arch/ Remove notes about automatically generated context_offset.h
and replace it with a proper copyright notice.
 
1948 6475 d 8 h jermar /trunk/kernel/ Remove broken, outdated and unused gencontext.c utilities.  
1946 6477 d 20 h jermar /trunk/kernel/arch/sparc64/ sparc64 work.
- Improve panic screen on data_access_exception
by dumping contents of DSFSR and DSFAR.
- Change the FHC enable interrupt code to only
set the IMAP_V bit.
 
1942 6478 d 22 h jermar /trunk/ Convert ia64 to the new IRQ and notification scheme.  
1921 6482 d 23 h jermar /trunk/kernel/ Changes in ns16550 and z8530 drivers.
Add some stuff for IRQ notifications to irq_t.
 
1917 6487 d 23 h jermar /trunk/ sparc64 work:
- hw_map() can now support up to 8M requests
- CPU stacks are now locked in DTLB of the respective processor
- kernel in the boot phase no longer relies on the stack provided by OpenFirmware
- instead of of doing FLUSHW during kernel startup, simply set the
window state registers to the wanted state
- NWINDOW -> NWINDOWS
- Add/fix some comments and copyrights.
 
1915 6488 d 23 h jermar /trunk/kernel/ A quote from from SPARC V9 specification:

The Y register is deprecated; it is provided only for compatibility with previous versions
of the architecture. It should not be used in new SPARC-V9 software. It is
recommended that all instructions that reference the Y register (i.e., SMUL,
SMULcc, UMUL, UMULcc, MULScc, SDIV, SDIVcc, UDIV, UDIVcc, RDY, and
WRY) be avoided. See the appropriate pages in Appendix A, “Instruction Definitions,”
for suitable substitute instructions.

Still gcc is generating code which uses Y and some of the instructions above.
This change modifies the preemptible_handler() to preserve the Y register
across preemption.