Subversion Repositories HelenOS

Rev

Go to most recent revision | Show changed files | Directory listing | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
1949 6547 d 6 h jermar /trunk/kernel/arch/ Remove notes about automatically generated context_offset.h
and replace it with a proper copyright notice.
 
1948 6547 d 9 h jermar /trunk/kernel/ Remove broken, outdated and unused gencontext.c utilities.  
1947 6548 d 0 h decky /trunk/boot/genarch/ add OFW quiesce command  
1946 6549 d 21 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 6550 d 2 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 6550 d 2 h jermar /trunk/kernel/ Add mutual exclusion to keyboard grab and release
functions on sparc64, ppc32, mips32 and ia64.
 
1943 6550 d 10 h decky /trunk/kernel/arch/xen32/src/ xen32: fix compilation  
1942 6550 d 23 h jermar /trunk/ Convert ia64 to the new IRQ and notification scheme.  
1941 6551 d 2 h decky /trunk/kernel/generic/include/ cleanup  
1940 6551 d 3 h decky /trunk/kernel/arch/amd64/ amd64: fix compilation, keyboard not checked yet  
1939 6551 d 3 h decky /trunk/ ia32: fix compilation, keyboard not checked yet  
1938 6551 d 10 h decky /trunk/uspace/kbd/arch/mips32/src/ mips32: update kbd driver  
1937 6551 d 10 h decky /trunk/kernel/arch/ remove orphaned functions  
1936 6551 d 10 h decky /trunk/kernel/arch/mips32/ mips32: update for new IRQ subsystem  
1935 6551 d 10 h decky /trunk/kernel/generic/include/ add function type  
1934 6551 d 11 h decky /trunk/kernel/arch/ppc32/src/drivers/ remove grab (not needed)  
1933 6551 d 22 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  
1932 6551 d 23 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 6552 d 0 h jermar /trunk/ Add support for IPC notifications even for polled ns16550 based keyboard.  
1930 6552 d 4 h decky /trunk/kernel/arch/ppc64/ ppc64: make it compile again  
1929 6552 d 4 h decky /trunk/kernel/generic/src/console/ ipc_irq_send_msg(NULL, 0, 0, 0) is definitively a bug  
1928 6552 d 4 h decky /trunk/ ppc32: update for new IRQ subsystem (there is still a bug left)  
1927 6552 d 5 h decky /trunk/kernel/generic/include/ remove dummy definitions (which tent to lead to mysterious bugs)  
1926 6552 d 9 h decky /trunk/kernel/ cleanup for new IRQ subsystem  
1925 6552 d 22 h jermar /trunk/kernel/genarch/src/kbd/ Support for grabbing and releasing z8530 keyboard for sparc64.
We might later add some locking.
 
1924 6552 d 22 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 6552 d 23 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 6554 d 7 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 6555 d 0 h jermar /trunk/kernel/ Changes in ns16550 and z8530 drivers.
Add some stuff for IRQ notifications to irq_t.
 
1920 6555 d 8 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 6555 d 23 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 6559 d 23 h jermar /trunk/kernel/arch/sparc64/src/mm/ Omitted comma.  
1917 6560 d 0 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 6560 d 22 h jermar /trunk/kernel/arch/sparc64/src/trap/ Small change of code organization.
No functional difference.
 
1915 6560 d 23 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 6561 d 5 h jermar /trunk/kernel/generic/ Add function for printing out info about address space.  
1913 6562 d 1 h jermar /trunk/contrib/conf/ Add sample configuration file for running HelenOS/sparc64 in Simics 3.0.  
1912 6562 d 8 h jermar /trunk/kernel/ Separate mapping of EBUS interrupts into two parts: EBUS and PCI.  
1911 6562 d 21 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.
 
1910 6565 d 21 h jermar /trunk/kernel/ Rename INO to INR, for the sake of consistency with manuals.