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Rev Age Author Path Log message Diff
3343 5923 d 7 h decky /branches/sparc/ add sparc branch  
3240 5942 d 13 h decky / move unfinished ObjC support to a separate branch  
3233 5946 d 9 h decky /trunk/ remove dummy page coloring facility, which is currenty not used  
3222 5965 d 8 h svoboda /trunk/ Merge program-loader related stuff from dynload branch to trunk. (huge)  
3208 5967 d 4 h jermar /trunk/kernel/generic/ The real intention of the previous commit was to put the boundary
on 4 GiB, not 16 GiB.		  
3207 5967 d 4 h jermar /trunk/kernel/generic/ Introduce FRAME_LOW_16_GiB slab/frame allocator flag. When specified, the
allocators will not allocate memory above 16 GiB. Each architecture needs to
make sure not to merge zones from below and above 16 GiB. Allocations that
require memory below 16 GiB need to be altered to use this flag.		  
3206 5967 d 6 h jermar /trunk/kernel/generic/ Avoid deadlock during the 'zone n' kconsole command. Buddy allocator detail is
no longer printed because the effort to avoid the deadlock was simply not worth
it.		  
3182 5981 d 9 h jermar /trunk/kernel/generic/include/mm/ cstyle for slab.h  
2745 6097 d 12 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2725 6118 d 10 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)		  
2556 6248 d 13 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2465 6361 d 9 h jermar /trunk/ Merge arm32 into trunk.  
2444 6369 d 0 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...		  
2183 6425 d 8 h jermar /trunk/kernel/generic/ Continue to de-oversynchronize the kernel.
- replace as->refcount with an atomic counter; accesses to this
reference counter are not to be done when the as->lock mutex is held;
this gets us rid of mutex_lock_active();

Remove the possibility of a deadlock between TLB shootdown and asidlock.
- get rid of mutex_lock_active() on as->lock
- when locking the asidlock spinlock, always do it conditionally and with
preemption disabled; in the unsuccessful case, enable interrupts and try again
- there should be no deadlock between TLB shootdown and the as->lock mutexes
- PLEASE REVIEW !!!

Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops.		  
2170 6430 d 2 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.		  
2142 6433 d 9 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6478 d 1 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6478 d 4 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2124 6478 d 6 h decky /trunk/kernel/generic/ implement simple realloc()  
2122 6484 d 8 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2107 6486 d 2 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 6486 d 11 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.		  
2094 6491 d 6 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6491 d 7 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6492 d 11 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2085 6498 d 9 h decky /trunk/kernel/ typedef elimination  
2083 6498 d 10 h decky /trunk/kernel/ typedef elimination  
2071 6503 d 3 h jermar /trunk/ (c) versus (C)  
2059 6526 d 12 h jermar /trunk/kernel/generic/ Improve indentation and formatting.  
2015 6542 d 4 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 6547 d 3 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2007 6550 d 2 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.		  
2001 6553 d 1 h jermar /trunk/kernel/ Indentation and comment fixes.  
2000 6553 d 13 h decky /trunk/kernel/ move files to more proper locations  
1999 6553 d 13 h decky /trunk/ start RAM disk support  
1951 6590 d 6 h jermar /trunk/kernel/generic/include/mm/ Fix comma mistakenly removed in last commit.  
1950 6590 d 6 h jermar /trunk/kernel/ Indentation changes and coding style fixes in slab.c and slab.h.  
1941 6594 d 7 h decky /trunk/kernel/generic/include/ cleanup  
1914 6604 d 9 h jermar /trunk/kernel/generic/ Add function for printing out info about address space.  
1891 6624 d 2 h jermar /trunk/kernel/ sparc64 work:
- Experimental support for TSB (Translation Storage Buffer).