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Rev Age Author Path Log message Diff
4692 6148 d 4 h svoboda /branches/tracing/ Merge trunk changes up to r4686.  
4377 6248 d 3 h svoboda /branches/tracing/ Merge latest trunk changes to tracing. (i.e. revs 3684:4374, huge). This time hopefully the real thing.  
3424 6486 d 1 h svoboda /branches/tracing/ Merge trunk changes up to r3180 into tracing  
2787 6658 d 7 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2211 7013 d 5 h decky /trunk/kernel/generic/src/synch/ reflect the renaming of printflock to printf_lock  
2183 7015 d 7 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.
 
2087 7083 d 6 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 7093 d 2 h jermar /trunk/ (c) versus (C)  
1787 7283 d 5 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 7290 d 6 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 7304 d 11 h jermar /kernel/trunk/ Cleanup of comments.  
1702 7311 d 9 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1667 7316 d 7 h jermar /kernel/trunk/ Print spurious interrupt messages only when compiled with CONFIG_DEBUG.
Print warning about looping spinlock only after 100000000 unsuccessfull attempts to gain the spinlock.
 
1323 7341 d 14 h jermar /kernel/trunk/ Increase "timeout" for debugging spinlock so that false positive
deadlock reports are suppressed on real hardware.

Also add one HT configuration to hardware compatibility list.
 
1313 7342 d 10 h jermar /kernel/trunk/ Do not report possible deadlock on fb_lock.
This issue was causing troubles in connection
with slow framebuffer in simulated environment
when false positives triggered an infinite
recursion of attempts to report deadlock on
fb_lock using printf() and fb_putchar().
 
1264 7354 d 11 h jermar /kernel/trunk/generic/ Improve Doxygen-comments.  
1224 7362 d 9 h cejka /kernel/trunk/ Fix pointers output format.
Fix format of slab and zones tables.
 
1104 7394 d 6 h jermar /kernel/trunk/ Define atomic_t only once in atomic.h
Change the encapsulated counter type to long so that it supports negative values as well.
 
1100 7396 d 3 h palkovsky /kernel/trunk/ Cleanup of spinlocks, now compiles both ia32 and amd64 with
and without DEBUG_SPINLOCKS. Made spinlocks inline.
Moved syscall_handler to generic (it was identical for ia32,amd64 & mips32).
Made slightly faster syscall for ia32.
Made better interrupt routines for ia32.
Allow not saving non-scratch registers during interrupt on ia32,amd64,mips32.
Aligned interrupt handlers on ia32,amd64, this should prevent problems
with different instruction lengths.
 
787 7439 d 6 h palkovsky /kernel/trunk/generic/ Added constructor/destructor calls to SLAB.
Changed allocation of thread_t structure to use SLAB.
 
625 7491 d 7 h palkovsky /kernel/trunk/ We are now almost -Wall clean.
- redefined atomic_t
- deleted many, many unused variables
- some minor code cleanups found using compiler warning.
 
622 7492 d 2 h palkovsky /kernel/trunk/ Better gcc CALLER implementation  
581 7496 d 11 h palkovsky /kernel/trunk/ Small debug changes.  
557 7499 d 10 h jermar /kernel/trunk/ Add comments describing locking rules for some locks.
Cleanup.
 
552 7500 d 1 h palkovsky /kernel/trunk/ Named spinlocks  
534 7502 d 3 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel again.  
532 7502 d 4 h jermar / Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.  
501 7514 d 8 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel.  
458 7528 d 11 h decky /SPARTAN/trunk/ make configuration variables usage consistent  
430 7535 d 1 h jermar /SPARTAN/trunk/ Move src/ and include/ to generic.  
383 7565 d 8 h jermar /SPARTAN/trunk/src/synch/ Doxygen-style comments for spinlock.c.  
223 7596 d 14 h jermar /SPARTAN/trunk/ Preemption work.
Instrument spinlock functions with preemption_disable() and preemption_enable() calls.
 
195 7598 d 3 h vana /SPARTAN/trunk/ 1) memcopy and _memcopy functions rewriten to ANSI C norm.
2) Repaired ia32,ia64 and mips version of SPARTAN to work with this memcopy functions
3) Warning for non declared funcions added and repaired ia32,ia64 and mips versions to pass build process with this warning and Werror option
 
153 7621 d 0 h jermar /SPARTAN/trunk/ Add memory barriers into spinlock_*().
Implement CS_{ENTER|LEAVE}_BARRIER() for IA-32 (no-op).
Provide incomplete CS_{ENTER|LEAVE}_BARRIER() macros for IA-64 and MIPS as well.

Small changes here and there.
 
111 7683 d 3 h palkovsky /SPARTAN/trunk/ Code cleanup in scheduler.c thread.c - removed unnecessary spinlock.
atomic_inc, atomic_dec moved to arch/atomic.h instead of arch/smp/atomic.h,
advisable to use even in non-smp mode.
Fixed atomic_inc, atomic_dec in mips architecture.
 
15 7741 d 5 h jermar /SPARTAN/trunk/ Introduce macros CPU, THREAD, TASK and use them to replace the->cpu, the->thread, the->task.
Later on, this will make it possible to reference *current* cpu, thread and/or task without the aid from virtual memory.
 
11 7783 d 23 h jermar /SPARTAN/trunk/ Clean up (ia32 vs. i386).
Header files reorganization.
 
1 7791 d 6 h jermar /SPARTAN/ Initial import