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Rev Age Author Path Log message Diff
3908 5713 d 0 h decky /trunk/ overhaul pareas: use one single physical area for the physical address space not belonging to physical memory  
3240 5913 d 8 h decky / move unfinished ObjC support to a separate branch  
3233 5917 d 3 h decky /trunk/ remove dummy page coloring facility, which is currenty not used  
3222 5936 d 2 h svoboda /trunk/ Merge program-loader related stuff from dynload branch to trunk. (huge)  
3208 5937 d 22 h jermar /trunk/kernel/generic/ The real intention of the previous commit was to put the boundary
on 4 GiB, not 16 GiB.		  
3207 5937 d 23 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 5938 d 0 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 5952 d 4 h jermar /trunk/kernel/generic/include/mm/ cstyle for slab.h  
2745 6068 d 7 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2725 6089 d 4 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 6219 d 7 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2465 6332 d 3 h jermar /trunk/ Merge arm32 into trunk.  
2444 6339 d 19 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...		  
2183 6396 d 2 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 6400 d 20 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 6404 d 3 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6448 d 20 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6448 d 22 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2124 6449 d 0 h decky /trunk/kernel/generic/ implement simple realloc()  
2122 6455 d 3 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2107 6456 d 21 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 6457 d 5 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 6462 d 1 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6462 d 1 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6463 d 5 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2085 6469 d 4 h decky /trunk/kernel/ typedef elimination  
2083 6469 d 5 h decky /trunk/kernel/ typedef elimination  
2071 6473 d 22 h jermar /trunk/ (c) versus (C)  
2059 6497 d 7 h jermar /trunk/kernel/generic/ Improve indentation and formatting.  
2015 6512 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 6517 d 21 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2007 6520 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.		  
2001 6523 d 19 h jermar /trunk/kernel/ Indentation and comment fixes.  
2000 6524 d 7 h decky /trunk/kernel/ move files to more proper locations  
1999 6524 d 7 h decky /trunk/ start RAM disk support  
1951 6561 d 0 h jermar /trunk/kernel/generic/include/mm/ Fix comma mistakenly removed in last commit.  
1950 6561 d 1 h jermar /trunk/kernel/ Indentation changes and coding style fixes in slab.c and slab.h.  
1941 6565 d 1 h decky /trunk/kernel/generic/include/ cleanup  
1914 6575 d 4 h jermar /trunk/kernel/generic/ Add function for printing out info about address space.  
1891 6594 d 20 h jermar /trunk/kernel/ sparc64 work:
- Experimental support for TSB (Translation Storage Buffer).