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Rev Age Author Path Log message Diff
2094 6348 d 1 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2089 6349 d 5 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6350 d 1 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2083 6355 d 5 h decky /trunk/kernel/ typedef elimination  
2076 6358 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 6359 d 22 h jermar /trunk/ (c) versus (C)  
2069 6361 d 20 h jermar /trunk/ Improve formatting.  
2059 6383 d 7 h jermar /trunk/kernel/generic/ Improve indentation and formatting.  
2052 6389 d 1 h decky /trunk/kernel/generic/src/mm/ pretty-print slabs  
2048 6391 d 23 h jermar /trunk/ Formatting and indentation changes.  
2035 6395 d 3 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2015 6398 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 6403 d 21 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2007 6406 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.
 
2000 6410 d 7 h decky /trunk/kernel/ move files to more proper locations  
1999 6410 d 7 h decky /trunk/ start RAM disk support  
1981 6420 d 6 h jermar /trunk/kernel/ Indentation, formatting and minor changes.  
1954 6442 d 21 h jermar /trunk/ Minor changes. Some coding style fixes and also a type (tee vs. tree).
One AS -> as change.
 
1950 6447 d 1 h jermar /trunk/kernel/ Indentation changes and coding style fixes in slab.c and slab.h.  
1915 6460 d 22 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.
 

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