| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 3902 |
5792 d 14 h |
jermar |
/trunk/kernel/ |
Introduce a more platform-neutral name for programmed I/O.
The new API looks like pio_read_n() or pio_write_n(), where n is 8, 16 or 32.
The old API (i.e. inb(), inw(), inl(), outb() outw(), outl()) may have made
some people think that the interface is only to be used with the separate I/O
space. That's not the case. This API is to be implemented on all platforms
so that we can finally have really generic kernel device drivers. |
|
| 3672 |
5864 d 9 h |
jermar |
/trunk/ |
Merge sparc branch to trunk. |
|
| 3580 |
5888 d 7 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Accesses to memory mapped registers should use volatile pointers so that
the compiler doesn't even think of trying to be clever. Add memory barriers
and fixed cstyle. |
|
| 3577 |
5888 d 21 h |
vana |
/trunk/kernel/ |
Support for serial port console on IA64 as a compensation for keyboard - based on SPARC ns16550 driver |
|
| 3071 |
6049 d 14 h |
decky |
/trunk/kernel/ |
reflect changes in generic code
proper formatting directives
coding style |
|
| 2089 |
6541 d 16 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2082 |
6547 d 16 h |
decky |
/trunk/ |
__asm__ __volatile__ -> asm volatile |
|
| 2071 |
6552 d 9 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2068 |
6559 d 16 h |
jermar |
/trunk/kernel/ |
Formatting and indentation fixes. |
|
| 1911 |
6655 d 7 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. |
|
| 1899 |
6665 d 16 h |
jermar |
/trunk/ |
sparc64 work:
- Loader now starts all processors.
- Kernel halts all but the bootstrup processor for now.
- Read clock-frequency from the respective processor node in the device tree |
|
| 1885 |
6677 d 20 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
On sparc64, get_stack_base() must use the unbiased %sp (i.e. %sp + 2047). |
|
| 1882 |
6678 d 16 h |
jermar |
/trunk/kernel/ |
Support for sparc64 FPU context. |
|
| 1881 |
6679 d 16 h |
jermar |
/trunk/ |
sparc64 work:
- find a CPU node and read its clock_frequency attribute
- implement asm_delay_loop()
- set TICK_COMPARE register according to processor frequency
- small improvements at random places
OpenFirmware work:
- two new functions for walking the device tree
Generic boot loader work:
- added basic string functions
Usual pile of indentation and formatting fixes. |
|
| 1880 |
6681 d 8 h |
jermar |
/trunk/ |
Small improvements here and there. |
|
| 1865 |
6687 d 10 h |
jermar |
/trunk/kernel/ |
sparc64 kernel fixes |
|
| 1864 |
6688 d 6 h |
jermar |
/trunk/ |
sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64. |
|
| 1860 |
6691 d 10 h |
jermar |
/trunk/kernel/ |
A lot of untested sparc64 stuff:
- Write ASID to hardware when a thread is about to run in userspace.
- Add userspace() and switch_to_userspace() functions.
- Handle special cases when the userspace spill/fill handler causes MMU trap.
- Resolve some TODOs in the existing sparc64 code.
- sparc64 has now C99 compliant header guards.
- Formatting and indentation fixes. |
|
| 1856 |
6692 d 18 h |
jermar |
/trunk/kernel/ |
sparc64 work.
- Modify before_thread_runs_arch() to store addresses of the kernel stack and
userspace window buffer, resp., to registers %g6 and %g7, resp, in the
alternate and interrupt global sets.
- Modify after_thread_ran_arch() to sample %g7 from the alternate globals.
- Implement trap handler for spilling register windows into userspace window buffer.
- Implement assembly language functions to access %g6 and %g7 registers in the alternate sets.
- Initialize the trap table so that there are now also spill_1_normal, spill_2_normal,
spill_0_other and fill_1_normal handlers. These handlers are used in different situations
and for different purposes. |
|
| 1855 |
6693 d 14 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Fix bug introduced in revision 1852. When fixing CWP,
the input registers of the current window (i.e. output
registers of the window belonging to the interrupted
context) must be preserved. Preserve those registers
in memory. Sure there exist more efficient ways how to
copy the inputs.
Simplify before_thread_runs_arch(), resp. after_thread_ran_arch(),
and make them install, resp. uninstall, DTLB locked mapping for
eventual userspace window buffer. |
|