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Rev Age Author Path Log message Diff
2040 6406 d 13 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2039 6406 d 14 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2035 6407 d 12 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2032 6407 d 13 h decky /trunk/kernel/generic/src/proc/ proper initialization of last_cycle  
2031 6407 d 15 h decky /trunk/kernel/generic/include/proc/ fix comment  
2030 6407 d 15 h decky /trunk/kernel/ thread CPU cycles accounting  
2027 6408 d 15 h decky /trunk/kernel/ cleanup kernel tests infrastructure  
2026 6409 d 4 h jermar /trunk/kernel/generic/include/ipc/ Improve comment.  
2025 6409 d 4 h jermar /trunk/ Coding style fixes.  
2020 6409 d 8 h decky /trunk/kernel/ integrate more tests  
2019 6409 d 9 h decky /trunk/kernel/ prepare for new test infrastructure  
2015 6411 d 7 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 6414 d 5 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 6416 d 6 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2007 6419 d 5 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.
 
2005 6420 d 11 h decky /trunk/ update rd  
2004 6420 d 11 h decky /trunk/kernel/generic/include/ cleanup  
2002 6420 d 13 h decky /trunk/kernel/generic/ rd work  
2001 6422 d 4 h jermar /trunk/kernel/ Indentation and comment fixes.  
2000 6422 d 16 h decky /trunk/kernel/ move files to more proper locations  
1999 6422 d 16 h decky /trunk/ start RAM disk support  
1981 6432 d 14 h jermar /trunk/kernel/ Indentation, formatting and minor changes.  
1972 6445 d 13 h jermar /trunk/ Modify selected function to consume less stack space.

Avoid flushw instruction in the sparc64 loader.
 
1954 6455 d 5 h jermar /trunk/ Minor changes. Some coding style fixes and also a type (tee vs. tree).
One AS -> as change.
 
1951 6459 d 9 h jermar /trunk/kernel/generic/include/mm/ Fix comma mistakenly removed in last commit.  
1950 6459 d 9 h jermar /trunk/kernel/ Indentation changes and coding style fixes in slab.c and slab.h.  
1941 6463 d 10 h decky /trunk/kernel/generic/include/ cleanup  
1935 6463 d 17 h decky /trunk/kernel/generic/include/ add function type  
1933 6464 d 6 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  
1932 6464 d 7 h jermar /trunk/kernel/ Do not copy notification config out of the IRQ structure.
Add the notify member, that toggles notifications on and off instead.
This is good for preventing other tasks from registering the notification
while the notification config is stored outside the IRQ structure.
It should also help to implement the cleanup code.
 
1929 6464 d 12 h decky /trunk/kernel/generic/src/console/ ipc_irq_send_msg(NULL, 0, 0, 0) is definitively a bug  
1927 6464 d 12 h decky /trunk/kernel/generic/include/ remove dummy definitions (which tent to lead to mysterious bugs)  
1926 6464 d 17 h decky /trunk/kernel/ cleanup for new IRQ subsystem  
1924 6465 d 6 h jermar /trunk/kernel/generic/ For the sake of clarity, get rid of negative INR for virtual interrupts.
This way, the code can hurt performance on systems where the non-negative klog INR overlaps
with a frequently used INR such as system clock on amd64 and ia32.
 
1923 6465 d 6 h jermar /trunk/ Replace the old IRQ dispatcher and IPC notifier with new implementation.
Note that all architectures except for sparc64 are now broken
and don't even compile.
 
1922 6466 d 14 h jermar /trunk/kernel/ More IRQ stuff.
Modify the IRQ hash table functions to support lookup based on inr and devno.
Add method member to irq_t.
 
1921 6467 d 8 h jermar /trunk/kernel/ Changes in ns16550 and z8530 drivers.
Add some stuff for IRQ notifications to irq_t.
 
1920 6467 d 15 h jermar /trunk/kernel/ Move the new IRQ redirector to ddi/.
Add function for assigning unique device numbers.
Change sparc64/drivers/kbd.c to assign devno to keyboard.
 
1919 6468 d 6 h jermar /trunk/kernel/ Prototypical implementation of new IRQ redirector in sparc64.
The new code can support shared IRQs in kernel (and multiple IRQs per device).
Userspace support is yet to be written.
The only architecture that uses this code is actually sparc64 only.
 
1915 6473 d 7 h jermar /trunk/kernel/ A quote from from SPARC V9 specification:

The Y register is deprecated; it is provided only for compatibility with previous versions
of the architecture. It should not be used in new SPARC-V9 software. It is
recommended that all instructions that reference the Y register (i.e., SMUL,
SMULcc, UMUL, UMULcc, MULScc, SDIV, SDIVcc, UDIV, UDIVcc, RDY, and
WRY) be avoided. See the appropriate pages in Appendix A, “Instruction Definitions,”
for suitable substitute instructions.

Still gcc is generating code which uses Y and some of the instructions above.
This change modifies the preemptible_handler() to preserve the Y register
across preemption.