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Rev Age Author Path Log message Diff
2170 6301 d 5 h jermar /trunk/kernel/ Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.

Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary.
 
2161 6303 d 8 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.
 
2160 6303 d 9 h decky /trunk/boot/arch/ remove duplicate dependency  
2144 6304 d 6 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6304 d 12 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2142 6304 d 13 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2141 6305 d 4 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.
 
2139 6305 d 5 h decky /trunk/contrib/toolchain/ move to GCC 4.1.2, make scripts really host platform independent
remove orphaned libobjc
 
2138 6305 d 8 h decky /trunk/contrib/toolchain/ revert previous change (libobjc is actually HOST platform dependent)  
2134 6306 d 8 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.
 
2133 6306 d 9 h jermar /trunk/kernel/generic/src/mm/ Coding style and indentation fixes.  
2132 6307 d 15 h jermar /trunk/kernel/generic/src/mm/ Fix coding style in the address space area backends.  
2129 6341 d 7 h jermar /trunk/ Fix small problem in sparc64 port.

Bump version to 0.2.0.4 (Sunset).
 
2128 6348 d 9 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.
 
2127 6348 d 18 h decky /trunk/kernel/generic/src/lib/ add forgotten implementation  
2126 6349 d 5 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6349 d 8 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2124 6349 d 10 h decky /trunk/kernel/generic/ implement simple realloc()  
2123 6355 d 12 h decky /trunk/kernel/generic/src/mm/ add forgotten unsigned  
2122 6355 d 12 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2121 6355 d 13 h decky /trunk/kernel/generic/src/mm/ remove anonymous structure, add static qualifier  
2120 6355 d 13 h decky /trunk/kernel/generic/include/syscall/ specify syscall handler arguments  
2119 6355 d 13 h decky /trunk/kernel/generic/src/syscall/ explicit typecast  
2118 6355 d 13 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2117 6355 d 13 h decky /trunk/kernel/generic/src/ddi/ explicit typecast  
2116 6355 d 14 h decky /trunk/kernel/generic/src/ddi/ explicit typecast  
2115 6355 d 14 h decky /trunk/kernel/generic/src/cpu/ fix signed/unsigned comparison  
2114 6355 d 14 h decky /trunk/kernel/generic/src/console/ explicit typecast  
2113 6355 d 15 h decky /trunk/kernel/generic/src/console/ explicit typecast, fix signed/unsigned comparison  
2112 6355 d 15 h decky /trunk/kernel/generic/src/adt/ explicit typecast, fix signed/unsigned comparison  
2111 6355 d 15 h decky /trunk/kernel/generic/src/adt/ fix signed/unsigned comparison  
2110 6356 d 7 h jermar /trunk/kernel/arch/ia64/ Minor cleanup in ia64.  
2109 6356 d 16 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.
 
2108 6356 d 16 h jermar /trunk/kernel/generic/src/console/ Cleanup kconsole.c  
2107 6357 d 6 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 6357 d 15 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 6361 d 15 h decky /trunk/kernel/ move ipc structures to ipc.h  
2104 6361 d 17 h decky /trunk/kernel/generic/src/lib/ more fine order of magnitude display  
2103 6362 d 8 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h
 
2102 6362 d 8 h decky /trunk/kernel/genarch/src/fb/ signed/unsigned comparison, explicit typecast