| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 3770 |
5599 d 16 h |
rimsky |
/branches/sparc/ |
Working on Niagara port - TLB initialization, MMU fault status area initialization, hypercall enhancement, modified tick.c so that the (hyperprivileged) TICK register does not have to be accessed. Now the initialization phase proceeds, but some parts of it are omitted for now (e.g. CPU initialization). |
|
| 3743 |
5607 d 1 h |
rimsky |
/branches/sparc/ |
Started to implement support for sun4v. Bootloader adapted to autodetect the architecture (sun4u, sun4v). Some generic sparc64 kernel files split into sun4u and sun4v versions (but the sun4u is still the default in many cases - in order to keep the code compilable). Implemented taking over the MMU. Implemented routines for performing the hypervisor API calls. Implemented a trivial standard output driver. HelenOS banner can now be printed from the kernel on Niagara. |
|
| 3664 |
5630 d 15 h |
rimsky |
/branches/sparc/ |
Added some SunBlade 1500 stuff (part of it is just temporary - e.g. the new visual). Some small fixes and enhancements. |
|
| 3479 |
5695 d 0 h |
rimsky |
/branches/sparc/ |
Names containing 'UPA' replaced with strings containing more general 'ICBUS'. SMART_FIRMWARE option replaced with CPU autodetection + new option CONFIG_A_OUT_ISOFS_B. |
|
| 3477 |
5698 d 18 h |
rimsky |
/branches/sparc/kernel/arch/sparc64/ |
comments |
|
| 3343 |
5735 d 21 h |
decky |
/branches/sparc/ |
add sparc branch |
|
| 3071 |
5812 d 23 h |
decky |
/trunk/kernel/ |
reflect changes in generic code
proper formatting directives
coding style |
|
| 2141 |
6246 d 14 h |
jermar |
/trunk/ |
The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.
Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache. |
|
| 2134 |
6247 d 18 h |
jermar |
/trunk/kernel/ |
Reworked handling of illegal virtual aliases caused by frame reuse.
We moved the incomplete handling from backend's frame method to
backend's page_fault method. The page_fault method is the one that
can create an illegal alias if it writes the userspace frame using
kernel address with a different page color than the page to which is
this frame mapped in userspace. When we detect this, we do D-cache
shootdown on all processors (!!!).
If we add code that accesses userspace memory from kernel address
space, we will have to check for illegal virtual aliases at all such
places.
I tested this on a 4-way simulated E6500 and a real-world Ultra 5,
which has unfortunatelly only one processor.
This solves ticket #26. |
|
| 2089 |
6305 d 0 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2079 |
6311 d 19 h |
decky |
/trunk/kernel/ |
remove some typedefs in favor of anonymous structures |
|
| 2071 |
6315 d 17 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2046 |
6349 d 19 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Another comment fix. |
|
| 2045 |
6349 d 19 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Fix comment. |
|
| 2044 |
6349 d 20 h |
jermar |
/trunk/kernel/arch/sparc64/ |
On sparc64's tick interrupt, adjust the TICK_COMPARE register instead of the TICK
register. The TICK register now increments linearily and can be used by the get_cycle()
function. |
|
| 2038 |
6350 d 15 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Remove old stuff. |
|
| 2009 |
6359 d 17 h |
jermar |
/trunk/kernel/ |
Initial support for handling illegal virtual aliases on sparc64. |
|
| 1903 |
6427 d 18 h |
jermar |
/trunk/ |
SMP stuff for sparc64.
Almost complete except for IPIs.
The absence of IPI support deadlocks
the kernel when more CPUs are configured. |
|
| 1881 |
6443 d 1 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. |
|
| 1860 |
6454 d 19 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. |
|