| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 1881 |
6632 d 17 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 |
6634 d 9 h |
jermar |
/trunk/ |
Small improvements here and there. |
|
| 1875 |
6637 d 10 h |
jermar |
/trunk/ |
sparc64 work.
- Changes to enable userspace keyboard drivers.
- Fix z8530 initialization (i.e. clear any pending Tx interrupts).
- Experimental support for framebuffers with inverted colors. |
|
| 1864 |
6641 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. |
|
| 1862 |
6643 d 13 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Kernel syscall support.
Modify the preemptive_handler for the use by syscalls. |
|
| 1855 |
6646 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. |
|
| 1854 |
6646 d 19 h |
jermar |
/trunk/kernel/ |
Define architecture-specific thread sub-constructors and sub-destructors on all architectures.
Define the THREAD_FLAG_USPACE which means that the thread runs in user space.
The forementioned changes allow for allocating of user window buffer on sparc64
threads that execute in userspace.
A lot of formatting and indentation fixes. |
|
| 1851 |
6654 d 16 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Define the istate structure.
Move the identity-mapping handler to assembly.
Make the preemptible handler more general so that TL=1 MMU exceptions can make use of it.
Little bit of formatting and indentation. |
|
| 1839 |
6670 d 14 h |
decky |
/trunk/kernel/generic/ |
finish security context isolation |
|
| 1833 |
6674 d 5 h |
decky |
/trunk/kernel/ |
more sophisticated initial stack handling |
|
| 1826 |
6674 d 12 h |
decky |
/trunk/kernel/generic/src/main/ |
some debugging output |
|
| 1822 |
6674 d 19 h |
jermar |
/trunk/ |
sparc64 work.
1. Formatting fixes.
2. When writing to DMMU ASI's, simple membar() can be used in place of flush().
3. Substantial changes in the way the TLB is taken over.
4. Remove unneeded functions.
This is the first revision that also runs on a real world Ultra 5 with UltraSPARC IIi
processor.
Note that 3. needs further work as the current implementation depends on the fact
that the compiler will use registers for local variables in take_over_tlb_and_tt().
Rewrite of that function into assembly is to follow. |
|
| 1820 |
6678 d 7 h |
decky |
/trunk/kernel/generic/ |
initial security context support |
|
| 1793 |
6692 d 18 h |
jermar |
/trunk/kernel/ |
Change hw_map() on sparc64 to use virtual addresses that are
beyond the end of physical memory. It is beneficial in two
ways: first, physical memory is no longer being wasted by
otherwise necessary calls to frame_alloc() and, second,
virtual addresses for devices are now correctly allocated
and do not overlap with the 4M TLB-locked mapping for
kernel text and data. |
|
| 1790 |
6693 d 13 h |
jermar |
/trunk/ |
Remove OpenFirmware calls from kernel/ entirely.
Switch the sparc64 port to use bootinfo.
Copy memcpy from boot/ to sparc64 kernel/ and
adjust it for memcpy_from/to_uspace. |
|
| 1787 |
6695 d 12 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6702 d 13 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1767 |
6710 d 20 h |
palkovsky |
/kernel/trunk/ |
Remove unneeded FRAME_PANIC.
Fix some things broken by last commit. |
|
| 1766 |
6710 d 20 h |
palkovsky |
/kernel/trunk/ |
Changed frame_alloc call, cleaned a lot of stuff, fixed some not-perfectly-correct error handling. |
|
| 1760 |
6713 d 14 h |
palkovsky |
/kernel/trunk/ |
Changed interface of frame_alloc/free to use address of frame instead of the pfn.
This makes it impossible to use >4GB of memory on 32-bit machines, but who cares... |
|