| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 4277 |
5692 d 21 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. |
|
| 3973 |
5739 d 1 h |
decky |
/trunk/kernel/ |
kernel memory management revisited (phase 2): map physical memory according to zones
- ia32: register reserved and ACPI zones
- pareas are now used only for mapping of present physical memory (hw_area() is gone)
- firmware zones and physical addresses outside any zones are allowed to be mapped generally
- fix nasty antient bug in zones_insert_zone() |
|
| 3908 |
5749 d 18 h |
decky |
/trunk/ |
overhaul pareas: use one single physical area for the physical address space not belonging to physical memory |
|
| 3672 |
5822 d 16 h |
jermar |
/trunk/ |
Merge sparc branch to trunk. |
|
| 2721 |
6126 d 22 h |
decky |
/trunk/kernel/ |
convert e820list to a generic physmem command |
|
| 2141 |
6441 d 13 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. |
|
| 2071 |
6510 d 16 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2068 |
6517 d 23 h |
jermar |
/trunk/kernel/ |
Formatting and indentation fixes. |
|
| 1860 |
6649 d 18 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. |
|
| 1857 |
6650 d 21 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work.
More bits needed to reach the userspace milestone were added.
The preemptible_handler(), still a prototype, now contains all functionality it needs.
Some sanitation was added to functions expecting page-aligned pointers to
userspace window buffer. |
|
| 1793 |
6698 d 1 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. |
|
| 1787 |
6700 d 18 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6707 d 19 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1702 |
6728 d 22 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 967 |
6820 d 2 h |
palkovsky |
/kernel/trunk/ |
Allowed userspace to include page.h. |
|
| 763 |
6859 d 21 h |
jermar |
/kernel/trunk/ |
Modify frame.h to use shifting instead of multiplication and division.
Define FRAME_WIDTH for all architectures. |
|
| 756 |
6861 d 12 h |
jermar |
/kernel/trunk/ |
Memory management work.
Remove the last (i.e. 'root') argument from page_mapping_insert() and page_mapping_find().
Page table address is now extracted from the first (i.e. 'as') argument.
Add a lot of infrastructure to make the above possible.
sparc64 is now broken, most likely because of insufficient identity mapping of physical memory. |
|
| 619 |
6910 d 11 h |
jermar |
/kernel/trunk/arch/sparc64/ |
sparc64 work.
Functions for disabling/enabling MMU.
TLB initialization.
Identity mapping of first 4M for kernel.
Switch to kernel copy of trap table. |
|
| 534 |
6919 d 17 h |
jermar |
/ |
Rename HelenOS/SPARTAN to HelenOS/kernel again. |
|
| 532 |
6919 d 17 h |
jermar |
/ |
Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch. |
|