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2183 6326 d 18 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 6331 d 12 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2142 6334 d 19 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2128 6378 d 15 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.
 
2126 6379 d 12 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6379 d 14 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2124 6379 d 16 h decky /trunk/kernel/generic/ implement simple realloc()  
2122 6385 d 19 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2120 6385 d 19 h decky /trunk/kernel/generic/include/syscall/ specify syscall handler arguments  
2109 6386 d 23 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.
 
2107 6387 d 13 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 6387 d 21 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 6391 d 22 h decky /trunk/kernel/ move ipc structures to ipc.h  
2103 6392 d 14 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h
 
2098 6392 d 16 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2096 6392 d 17 h decky /trunk/kernel/generic/include/ move thread_t to thread.h  
2094 6392 d 17 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6392 d 17 h decky /trunk/kernel/ spinlock extern declaration macro  
2092 6392 d 18 h decky /trunk/kernel/generic/include/ move cpu_t to cpu.h  
2090 6393 d 17 h decky /trunk/kernel/generic/include/proc/ cleanup garbage  
2089 6393 d 21 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2085 6399 d 20 h decky /trunk/kernel/ typedef elimination  
2083 6399 d 21 h decky /trunk/kernel/ typedef elimination  
2081 6399 d 22 h decky /trunk/kernel/generic/include/ another typedefs to anonymous structs  
2080 6399 d 22 h decky /trunk/kernel/generic/include/ another typedef to anonymous enum  
2079 6400 d 16 h decky /trunk/kernel/ remove some typedefs in favor of anonymous structures  
2071 6404 d 14 h jermar /trunk/ (c) versus (C)  
2059 6427 d 23 h jermar /trunk/kernel/generic/ Improve indentation and formatting.  
2050 6434 d 0 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2048 6436 d 15 h jermar /trunk/ Formatting and indentation changes.  
2042 6438 d 18 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again
 
2039 6438 d 22 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2031 6439 d 22 h decky /trunk/kernel/generic/include/proc/ fix comment  
2030 6439 d 22 h decky /trunk/kernel/ thread CPU cycles accounting  
2026 6441 d 11 h jermar /trunk/kernel/generic/include/ipc/ Improve comment.  
2025 6441 d 11 h jermar /trunk/ Coding style fixes.  
2019 6441 d 16 h decky /trunk/kernel/ prepare for new test infrastructure  
2015 6443 d 14 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.
 
2012 6446 d 12 h jermar /trunk/ Eliminate confusion between SYS_MAP_PHYSMEM and sys_physmem_map.
The syscall is to be called SYS_PHYSMEM_MAP from now on and the functions that participate in its implementation are
called *physmem_map().
 
2009 6448 d 13 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.