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Rev Age Author Path Log message Diff
4638 5463 d 10 h rimsky /branches/sparc/kernel/ SMP on Niagara made working: debugged the problem with the 'non-deterministic' symptoms, implemented the IPI mechanism.  
3993 5596 d 3 h rimsky /branches/sparc/kernel/ Implemented preemptible trap handler for userspace (including syscalls - did not forget enabling interrupts for them) and the ralated stuff. Implemented handlers of instruction/data MMU miss/protection. Now some userspace tasks are run; there are, however, still some bugs causing unexpected data MMU misses.  
3862 5621 d 3 h rimsky /branches/sparc/kernel/ Changed the structure of header files, which have sun4u and sun4v versions. Implemented some sun4v TSB functions.  
3817 5634 d 3 h rimsky /branches/sparc/kernel/ Progress on Niagara: Commented out portions of mm, which are not required for kernel threads (temporarily). Scheduler is working. Implemented a driver of hypervisor's standard input. Kernel console is usable.  
3798 5639 d 3 h rimsky /branches/sparc/kernel/ Implemented preemptible trap handler for sun4v for trapping from kernel (not userspace). Not properly tested/debugged yet. HelenOS now reaches the as_install_arch function (where it, of course, fails).  
3770 5654 d 4 h rimsky /branches/sparc/ Working on Niagara port - TLB initialization, MMU fault status area initialization, hypercall enhancement, modified tick.c so that the (hyperprivileged) TICK register does not have to be accessed. Now the initialization phase proceeds, but some parts of it are omitted for now (e.g. CPU initialization).  
3742 5661 d 13 h rimsky /branches/sparc/ The sparc branch synchronized with trunk at revision 3722 (trunk@3722).  
3607 5696 d 2 h rimsky /branches/sparc/ Cleanup and minor fixes.  
3593 5700 d 3 h rimsky /branches/sparc/ Merged latest trunk changes into sparc branch.  
3582 5705 d 16 h rimsky /branches/sparc/ Made changes making HelenOS run on US-IV CPUs. Minor refactoring of the SGCN driver.  
3549 5713 d 2 h rimsky /branches/sparc/ Implemented uspace Serengeti drivers for kbd and fb. Integrated with other parts of HelenOS. Now it is possible to play Tetris on a simulated Serengeti machine (usiii.simics).  
3514 5722 d 3 h rimsky /branches/sparc/ Input support added to SGCN driver, connected to HelenOS kernel (uspace TBD), so that kconsole is usable.  
3492 5734 d 7 h rimsky /branches/sparc/ Changes in trunk merged into the sparc branch. SILO's ramdisk issue solved by the CONFIG_RD_EXTERNAL option.  
3467 5756 d 4 h rimsky /branches/sparc/ SMP and CPU initialiation modified to work even with Serengeti OFW tree layout; support for output to the Simics CLI console added (see my blog); some header files modified to conform US-III definition. Now HelenOS (on the sample configuration - usiii.simics) is able to run some userspace tasks.  
3397 5766 d 12 h rimsky /branches/sparc/ Merged recent changes from trunk into the Sparc branch.  
3365 5784 d 3 h rimsky /branches/sparc/ Integrated US-III port into the build process; added script for downloading and patching SILO; added patched SILO binaries; modified sources of the Sparc64 port up to the beginning of the main_bsp_separated_stack function: phys. address size not hardwired but configurable (41 bits on US-II, 43 bits on US-III), WSTATE register implicitly written 0 on startup.  
3343 5790 d 9 h decky /branches/sparc/ add sparc branch  
3222 5832 d 9 h svoboda /trunk/ Merge program-loader related stuff from dynload branch to trunk. (huge)  
3193 5840 d 5 h jermar /trunk/kernel/ cstyle fixes  
3181 5849 d 15 h jermar /trunk/kernel/generic/src/ cstyle for kinit.c and scheduler.c  
3175 5851 d 13 h jermar /trunk/kernel/generic/src/main/ Don't print anything before the kernel initializes the first THE
structure. This fixes a regression introduced in r3061. If anything
worked from r3061 until now, it was only due to luck. arm32 was not
that lucky when built with gcc 4.3.1.
 
3097 5866 d 6 h decky /trunk/kernel/ resurrect klog  
3061 5867 d 11 h decky /trunk/kernel/generic/src/main/ debugging output of kernel initialization  
3060 5867 d 11 h decky /trunk/kernel/generic/src/main/ run init tasks after they are all loaded  
3029 5871 d 11 h decky /trunk/kernel/generic/ fix kernel ramdisk support  
2746 5964 d 9 h decky /trunk/kernel/ start merging tasklets (more or less a rewrite)  
2745 5964 d 14 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2725 5985 d 11 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)
 
2701 5997 d 13 h jermar /trunk/kernel/ Fix cstyle and (c) to 2008.  
2447 6235 d 10 h jermar /trunk/kernel/generic/src/main/ Split accidently joined lines.  
2446 6235 d 10 h jermar /trunk/kernel/generic/ More efficient and simpler task termination.

Based on the assumption, that after its creation, only the task itself can create more threads for itself,
the last thread with userspace context to execute thread_exit() will perform futex and IPC cleanup. When
the task has no threads, it is destroyed. Both the cleanup and destruction is controlled by reference
counting.

As for userspace threads, even though there could be a global garbage collector for joining threads, it is
much simpler if the uinit thread detaches itself before switching to userspace.

task_kill() is now an idempotent operation. It just instructs the threads within a task to exit.

Change in the name of a thread state: Undead -> JoinMe.
 
2445 6235 d 11 h decky /trunk/ initial merge of branches/fs
(not finished, huge cleanup is needed)
 
2227 6288 d 19 h decky /trunk/kernel/ start shutdown infrastructure  
2223 6289 d 2 h decky /trunk/kernel/generic/src/ add mcall0 command (calling a function on each CPU)  
2118 6351 d 10 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2089 6359 d 12 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6360 d 8 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6370 d 5 h jermar /trunk/ (c) versus (C)  
2070 6370 d 12 h jermar /trunk/ Rather big indentation and formatting changes.
More inteligent long line wrapping.
 
2066 6382 d 10 h jermar /trunk/kernel/generic/src/main/ Formatting changes.
Bump year in kernel copyright.