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Rev Age Author Path Log message Diff
1950 6454 d 20 h jermar /trunk/kernel/ Indentation changes and coding style fixes in slab.c and slab.h.  
1949 6455 d 1 h jermar /trunk/kernel/arch/ Remove notes about automatically generated context_offset.h
and replace it with a proper copyright notice.
 
1948 6455 d 3 h jermar /trunk/kernel/ Remove broken, outdated and unused gencontext.c utilities.  
1947 6455 d 18 h decky /trunk/boot/genarch/ add OFW quiesce command  
1946 6457 d 15 h jermar /trunk/kernel/arch/sparc64/ sparc64 work.
- Improve panic screen on data_access_exception
by dumping contents of DSFSR and DSFAR.
- Change the FHC enable interrupt code to only
set the IMAP_V bit.
 
1945 6457 d 20 h jermar /trunk/kernel/arch/ia64/ ia64 work.
Move keyboard polling to a dedicated kernel thread.
Console initialization and console related sysinfo setup
can be now done in a single function.
 
1944 6457 d 20 h jermar /trunk/kernel/ Add mutual exclusion to keyboard grab and release
functions on sparc64, ppc32, mips32 and ia64.
 
1943 6458 d 4 h decky /trunk/kernel/arch/xen32/src/ xen32: fix compilation  
1942 6458 d 17 h jermar /trunk/ Convert ia64 to the new IRQ and notification scheme.  
1941 6458 d 20 h decky /trunk/kernel/generic/include/ cleanup  
1940 6458 d 21 h decky /trunk/kernel/arch/amd64/ amd64: fix compilation, keyboard not checked yet  
1939 6458 d 21 h decky /trunk/ ia32: fix compilation, keyboard not checked yet  
1938 6459 d 4 h decky /trunk/uspace/kbd/arch/mips32/src/ mips32: update kbd driver  
1937 6459 d 4 h decky /trunk/kernel/arch/ remove orphaned functions  
1936 6459 d 4 h decky /trunk/kernel/arch/mips32/ mips32: update for new IRQ subsystem  
1935 6459 d 4 h decky /trunk/kernel/generic/include/ add function type  
1934 6459 d 5 h decky /trunk/kernel/arch/ppc32/src/drivers/ remove grab (not needed)  
1933 6459 d 16 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  
1932 6459 d 17 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.
 
1931 6459 d 18 h jermar /trunk/ Add support for IPC notifications even for polled ns16550 based keyboard.  
1930 6459 d 22 h decky /trunk/kernel/arch/ppc64/ ppc64: make it compile again  
1929 6459 d 22 h decky /trunk/kernel/generic/src/console/ ipc_irq_send_msg(NULL, 0, 0, 0) is definitively a bug  
1928 6459 d 22 h decky /trunk/ ppc32: update for new IRQ subsystem (there is still a bug left)  
1927 6459 d 23 h decky /trunk/kernel/generic/include/ remove dummy definitions (which tent to lead to mysterious bugs)  
1926 6460 d 4 h decky /trunk/kernel/ cleanup for new IRQ subsystem  
1925 6460 d 16 h jermar /trunk/kernel/genarch/src/kbd/ Support for grabbing and releasing z8530 keyboard for sparc64.
We might later add some locking.
 
1924 6460 d 17 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 6460 d 17 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 6462 d 1 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 6462 d 18 h jermar /trunk/kernel/ Changes in ns16550 and z8530 drivers.
Add some stuff for IRQ notifications to irq_t.
 
1920 6463 d 2 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 6463 d 17 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.
 
1918 6467 d 17 h jermar /trunk/kernel/arch/sparc64/src/mm/ Omitted comma.  
1917 6467 d 18 h jermar /trunk/ sparc64 work:
- hw_map() can now support up to 8M requests
- CPU stacks are now locked in DTLB of the respective processor
- kernel in the boot phase no longer relies on the stack provided by OpenFirmware
- instead of of doing FLUSHW during kernel startup, simply set the
window state registers to the wanted state
- NWINDOW -> NWINDOWS
- Add/fix some comments and copyrights.
 
1916 6468 d 16 h jermar /trunk/kernel/arch/sparc64/src/trap/ Small change of code organization.
No functional difference.
 
1915 6468 d 18 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.
 
1914 6468 d 23 h jermar /trunk/kernel/generic/ Add function for printing out info about address space.  
1913 6469 d 19 h jermar /trunk/contrib/conf/ Add sample configuration file for running HelenOS/sparc64 in Simics 3.0.  
1912 6470 d 2 h jermar /trunk/kernel/ Separate mapping of EBUS interrupts into two parts: EBUS and PCI.  
1911 6470 d 15 h jermar /trunk/kernel/ Add support for interrupt mapping in the Sabre PCI controller.
Add support for PCI and EBUS interrupt mapping via the OpenFirmware device tree.
Unfortunatelly, the code is not capable enough to earn single ns16550 interrupt.
I suspect something needs to be enabled in the EBUS registers.