| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 4282 |
5685 d 13 h |
decky |
/trunk/kernel/arch/sparc64/ |
repair two glitches in memory management
(no beer today :)) |
|
| 4277 |
5686 d 7 h |
jermar |
/trunk/kernel/arch/sparc64/ |
On sparc64, do fast indentity mapping only for physical memory.
For addresses above physical memory, such as I/O devices,
fall through to the C miss handler and map the memory noncacheably.
Replace deprecated Bicc instructions with proper Bcc instructions. |
|
| 2231 |
6422 d 6 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Fix a nasty bug in the TLB miss handlers on sparc64.
After we no longer lock the kernel stack in the DTLB,
there is a real danger of nested DTLB misses. The nested
miss can very easily clobber the DTLB Tag Access register.
Therefore, the original miss may not read this register, but
it has to receive its value as an argument. The argument
value is saved in the trap table when it is guaranteed that
the nested TLB miss will not occur. |
|
| 2071 |
6504 d 2 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 1978 |
6565 d 2 h |
jermar |
/trunk/ |
sparc64 code to support physical memory that starts on non-zero addresses.
Still needs to be tested on systems with such setup. |
|
| 1954 |
6587 d 1 h |
jermar |
/trunk/ |
Minor changes. Some coding style fixes and also a type (tee vs. tree).
One AS -> as change. |
|
| 1891 |
6625 d 1 h |
jermar |
/trunk/kernel/ |
sparc64 work:
- Experimental support for TSB (Translation Storage Buffer). |
|
| 1887 |
6629 d 10 h |
jermar |
/trunk/kernel/arch/sparc64/ |
When creating TLB mapping for the sparc64 kernel, enable CV (cacheable virtually) bit.
Also install locked mappings only in context 0. |
|
| 1870 |
6638 d 2 h |
jermar |
/trunk/kernel/ |
Handle more sparc64 traps and improve handling of already handled traps. |
|
| 1865 |
6639 d 4 h |
jermar |
/trunk/kernel/ |
sparc64 kernel fixes |
|
| 1864 |
6639 d 23 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. |
|
| 1861 |
6642 d 9 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Convert sparc64 traps using SIMPLE_HANDLER to using PREEMPTIBLE_HANDLER. |
|
| 1860 |
6643 d 4 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. |
|
| 1859 |
6643 d 11 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work.
- Convert interrupt_vector trap handler and some mm related trap handlers to
use preemptibe_handler(), which is essential for traps coming from userspace.
- Add fast_data_access_protection() handler. |
|
| 1852 |
6648 d 4 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Bunch of changes in preparation for sparc64 mm and userspace support.
Fix alignment of hardcoded_* variables in linker script. |
|
| 1851 |
6653 d 9 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. |
|
| 1787 |
6694 d 4 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1703 |
6721 d 15 h |
jermar |
/kernel/trunk/arch/ |
Put sparc64 interrupt stuff under the Interrupt group in Doxygen-generated documentation. |
|
| 1702 |
6722 d 8 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 883 |
6829 d 11 h |
jermar |
/kernel/trunk/arch/sparc64/ |
sparc64 work.
Switch console to framebuffer (needs proper detection and initialization).
No native keyboard support, so far.
Memory management trap handler fixes.
Do not use OpenFirmware trap table anymore. |
|