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Rev Age Author Path Log message Diff
2161 6267 d 3 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB bug during TSB refill.
When one wants to enable a TSB entry, he or she should set the
entry invalid bit to false, as opposed to setting it to true.
 
2144 6268 d 0 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6268 d 6 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2141 6268 d 22 h jermar /trunk/ The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.

Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache.
 
2134 6270 d 3 h jermar /trunk/kernel/ Reworked handling of illegal virtual aliases caused by frame reuse.
We moved the incomplete handling from backend's frame method to
backend's page_fault method. The page_fault method is the one that
can create an illegal alias if it writes the userspace frame using
kernel address with a different page color than the page to which is
this frame mapped in userspace. When we detect this, we do D-cache
shootdown on all processors (!!!).

If we add code that accesses userspace memory from kernel address
space, we will have to check for illegal virtual aliases at all such
places.

I tested this on a 4-way simulated E6500 and a real-world Ultra 5,
which has unfortunatelly only one processor.

This solves ticket #26.
 
2129 6305 d 1 h jermar /trunk/ Fix small problem in sparc64 port.

Bump version to 0.2.0.4 (Sunset).
 
2128 6312 d 3 h jermar /trunk/ Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered.
 
2125 6313 d 2 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2110 6320 d 1 h jermar /trunk/kernel/arch/ia64/ Minor cleanup in ia64.  
2107 6321 d 1 h jermar /trunk/ When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.

Formating and indentation fixes.
 
2106 6321 d 9 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 6325 d 9 h decky /trunk/kernel/ move ipc structures to ipc.h  
2101 6326 d 3 h decky /trunk/kernel/ fix signed/unsigned comparison and integer overflow  
2100 6326 d 3 h decky /trunk/kernel/ signed/unsigned comparison, explicit typecast  
2099 6326 d 4 h decky /trunk/kernel/arch/ia32/src/ explicit cast on pointer arithmetic  
2097 6326 d 4 h decky /trunk/kernel/arch/ia32/src/smp/ fix signed/unsigned comparison  
2095 6326 d 4 h decky /trunk/kernel/arch/ia32/src/smp/ fix signed/unsigned comparison  
2091 6327 d 5 h jermar /trunk/kernel/arch/sparc64/src/ Fix creating the kkbdpoll() kernel thread on sparc64 SMP machines.
This fixes Ticket #19.
 
2089 6327 d 9 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6328 d 5 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  

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