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4348 5535 d 10 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
4347 5535 d 11 h svoboda /branches/dynload/ Merge trunk changes up to r4195 to dynload.  
4346 5536 d 22 h svoboda /branches/dynload/ Merge trunk changes up to r4145 to dynload.  
4345 5536 d 22 h svoboda /branches/dynload/ Merge trunk changes up to r4040 to dynload.  
4344 5536 d 22 h svoboda /branches/dynload/ Merge trunk changes up to r3988 to dynload.  
4343 5536 d 22 h svoboda /branches/dynload/ Merged trunk changes up to r3925 to dynload.  
4342 5536 d 22 h svoboda /branches/dynload/ Merge trunk changes up to r3889 to dynload.  
4341 5536 d 23 h svoboda /branches/dynload/ Merge trunk changes up to r3860 to dynload.  
4339 5536 d 23 h svoboda /branches/dynload/ Merge trunk changes up to r3802 to dynload.  
4338 5536 d 23 h svoboda /branches/dynload/ Merge trunk changes up to r3787 to dynload.  
4337 5537 d 0 h svoboda /branches/dynload/ Merge changes in trunk up to r3741 to dynload.  
3674 5681 d 21 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
3588 5704 d 6 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3535 5716 d 2 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3474 5754 d 4 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3403 5764 d 9 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3168 5852 d 6 h svoboda /branches/dynload/ For each arch define one register for passing a pointer to PCB. Implemented in kernel lowlevel swich-to-userspace funcs and libc entry points. Missing in loader's program_run implementations.  
3153 5854 d 6 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3149 5854 d 6 h svoboda /branches/dynload/ Merge trunk changes up to r3071 into dynload (broken)  
2927 5886 d 9 h decky /branches/dynload/ added dynload branch  
2860 5915 d 23 h cejka /trunk/ Context handling unified for sparc64.  
2745 5964 d 8 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2725 5985 d 5 h decky /trunk/kernel/ remove config.memory_size, get_memory_size() and memory_init.{c|d}
the amount of available memory can be calculated from the sizes of the zones
add FRAMES2SIZE, SIZE2KB and SIZE2MB functions/macros (code readability)
 
2610 6067 d 3 h jermar /trunk/ Support for six syscall arguments for sparc64.
There is a minor stability issue which needs to be fixed (kernel panics upon entering kconsole from the
console task).
 
2510 6138 d 23 h jermar /trunk/kernel/ Experimental support for the cgsix framebuffer, which is found on old Ultra 1
worksations, and the SBUS bus and devices. Not tested.
 
2462 6229 d 23 h jermar /trunk/kernel/ Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64.
 
2272 6278 d 1 h jermar /trunk/kernel/ Indentation and formatting fixes.  
2267 6280 d 0 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix indentation.  
2266 6280 d 0 h jermar /trunk/kernel/arch/sparc64/src/mm/ Add few assertions to tsb.c and clean it up a little bit.  
2252 6281 d 22 h jermar /trunk/kernel/arch/sparc64/src/mm/ Move one MEMBAR instruction from a delay slot,
which is, due to SF Erratum #51, a potentionally
dangerous place for a MEMBAR to be.
 
2231 6288 d 3 h jermar /trunk/kernel/arch/sparc64/ Fix a nasty bug in the TLB miss handlers on sparc64.
After we no longer lock the kernel stack in the DTLB,
there is a real danger of nested DTLB misses. The nested
miss can very easily clobber the DTLB Tag Access register.
Therefore, the original miss may not read this register, but
it has to receive its value as an argument. The argument
value is saved in the trap table when it is guaranteed that
the nested TLB miss will not occur.
 
2228 6288 d 6 h jermar /trunk/kernel/arch/sparc64/src/ Fix ticket #28.
In switch_to_userspace(), the uarg argument is in %i2, not in %i3.
 
2227 6288 d 13 h decky /trunk/kernel/ start shutdown infrastructure  
2170 6296 d 21 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 6299 d 0 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 6299 d 21 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2141 6300 d 20 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 6302 d 0 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.
 
2107 6352 d 22 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.
 
2091 6359 d 2 h jermar /trunk/kernel/arch/sparc64/src/ Fix creating the kkbdpoll() kernel thread on sparc64 SMP machines.
This fixes Ticket #19.