| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 1860 |
6481 d 14 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 |
6482 d 18 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. |
|
| 1851 |
6491 d 20 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. |
|
| 1849 |
6495 d 22 h |
jermar |
/trunk/kernel/ |
sparc64 work.
interrupt_vector trap experimental handling.
Minimal reverse-engineered FireHose Controller driver (documentation needed!).
Keyboard on Sun Enterprise is now interrupt driven. Keyboard on Sun Ultra
is still polled. |
|
| 1823 |
6511 d 17 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work.
Dump take_over_tlb_and_tt() and add its assembly language replacement. |
|
| 1822 |
6511 d 22 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. |
|
| 1793 |
6529 d 22 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. |
|
| 1792 |
6530 d 11 h |
jermar |
/trunk/ |
Move functionality of tlb_arch_init() to take_over_tlb_and_tt().
Call take_over_tlb_and_tt() very early after the kernel starts
executing. |
|
| 1787 |
6532 d 15 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6539 d 16 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1702 |
6560 d 19 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1511 |
6571 d 19 h |
palkovsky |
/kernel/trunk/arch/ |
Remove __address from include file included by uspace |
|
| 1108 |
6643 d 11 h |
jermar |
/kernel/trunk/ |
Small PTE_* macros and SET_PTL0_ADDRESS macro changes. |
|
| 1070 |
6648 d 23 h |
jermar |
/kernel/trunk/ |
More checks for address space area conflicts. |
|
| 977 |
6651 d 19 h |
jermar |
/kernel/trunk/ |
Add sys_mremap() syscall. |
|
| 967 |
6651 d 23 h |
palkovsky |
/kernel/trunk/ |
Allowed userspace to include page.h. |
|
| 940 |
6653 d 14 h |
jermar |
/kernel/trunk/ |
Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader. |
|
| 901 |
6664 d 22 h |
jermar |
/kernel/trunk/arch/ |
ia64 work.
Provide PA2KA(identity) mapping for kernel data references via Alternate Data TLB Fault handler.
Add before_thread_runs_arch() that maps kstack, if necessary.
Add easy to use dtlb_mapping_insert() for comfortable insertion of kernel data mappings. |
|
| 897 |
6666 d 9 h |
jermar |
/kernel/trunk/ |
sparc64 work.
Fix KBD_VIRT_ADDRESS.
Call before_thread_runs() prior to the switch to the thread's stack. Add comment why this is crucial.
Add after_thread_ran() to the scheduler.
Add before_thread_runs_arch() and after_thread_ran_arch() for sparc64, mapping/demapping thread's kernel stack.
Add dummy after_thread_ran_arch() to all other architectures.
Add dtlb_insert_mapping() to promote code reuse. |
|
| 877 |
6669 d 13 h |
jermar |
/kernel/trunk/arch/sparc64/ |
Fixes in sparc64 preliminary TLB miss handler.
Compute and insert identity mapping for kernel on the fly. |
|