| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 3743 |
5593 d 10 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. |
|
| 3742 |
5593 d 11 h |
rimsky |
/branches/sparc/ |
The sparc branch synchronized with trunk at revision 3722 (trunk@3722). |
|
| 3618 |
5627 d 1 h |
rimsky |
/branches/sparc/ |
Support for framebuffers, where the first pixel is mapped to a different address than the OBP 'reg' property claims. Cleanup, comments, C-style. |
|
| 3591 |
5632 d 9 h |
rimsky |
/branches/sparc/ |
Making the code compatible also with US-IV (US-IV+) - TLB size based on CPU autodetection, cleanup of code waking up APs. General cleanup. |
|
| 3493 |
5663 d 2 h |
rimsky |
/branches/sparc/ |
More changes making the code US-III-conformant (mainly in mm). |
|
| 3450 |
5692 d 2 h |
rimsky |
/branches/sparc/kernel/arch/sparc64/ |
Made tlb.h conform US-III specification. |
|
| 3440 |
5693 d 11 h |
rimsky |
/branches/sparc/kernel/arch/sparc64/ |
TLB modifications in order to make functions tlb_print and tlb_invalidate_all work correctly in US-III. |
|
| 3343 |
5722 d 6 h |
decky |
/branches/sparc/ |
add sparc branch |
|
| 2745 |
5896 d 12 h |
decky |
/trunk/ |
code cleanup (mostly signed/unsigned)
allow extra compiler warnings |
|
| 2462 |
6162 d 3 h |
jermar |
/trunk/kernel/ |
Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64. |
|
| 2231 |
6220 d 7 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. |
|
| 2141 |
6233 d 0 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 |
6234 d 4 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 |
6291 d 10 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2078 |
6298 d 7 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
When invalidating entire TLBs on sparc64, make sure to also invalidate any (locked) global entries.
This fixes Ticket #21.
Fix a comment in start.S stating that the kernel installs a global entry for itself. All entries installed by the kernel
are local to some memory context. |
|
| 2071 |
6302 d 3 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2048 |
6334 d 4 h |
jermar |
/trunk/ |
Formatting and indentation changes. |
|
| 2009 |
6346 d 2 h |
jermar |
/trunk/kernel/ |
Initial support for handling illegal virtual aliases on sparc64. |
|
| 1996 |
6358 d 5 h |
jermar |
/trunk/kernel/ |
Add option to compile the sparc64 kernel without the TTE_CV bit support.
The bit is not used by default now.
Enabling it may theoretically lead to physical memory inconsistencies until code that
mitigates the problem is written. |
|
| 1946 |
6392 d 0 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. |
|