| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 758 |
6691 d 18 h |
jermar |
/kernel/trunk/arch/ |
sparc64 bugfix.
When disabling IMMU and DMMU the kernel has to perform synchronization operation
(e.g flush %r or membar #Sync instruction). There is no guarantee that the address
contained in %r is in DTLB and therefore the flush instruction can fault. Normally
this would be recognized and fixed by the OpenFirmware Fast Data MMU fault handler.
However, this handler lives in virtually mapped memory and an attempt to execute
there while the MMUs are disabled would result in a nested trap leading to error state.
Replacing flush %r instruction with membar #Sync, wich is sufficient in this case,
fixes this problem. |
|
| 757 |
6691 d 20 h |
jermar |
/kernel/trunk/ |
Blacklist addresses between 0xa0000 and 0xfffff on ia64 for frame allocator.
This area contains VGA text frame buffer and should be avoided.
falloc2 test now passes on ia64. |
|
| 756 |
6692 d 17 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. |
|
| 753 |
6694 d 0 h |
jermar |
/kernel/trunk/ |
Convert ASID management of ia64 to ASID FIFO mechanism.
18-bit RIDs are supported. |
|
| 746 |
6698 d 3 h |
jermar |
/kernel/trunk/ |
Page hash table modifications. |
|
| 743 |
6699 d 20 h |
jermar |
/kernel/trunk/arch/ |
sparc64 work.
13 bits wide means the max value is 8191 and not 0x8191. |
|
| 742 |
6699 d 20 h |
jermar |
/kernel/trunk/arch/ |
sparc64 work.
Memory context (ASID) is, in fact, 13 bits (and not 12 bits) wide. |
|
| 741 |
6699 d 20 h |
jermar |
/kernel/trunk/ |
Unlock address space prior TLB shootdown in get_asid() to unify
the locking order among mips32, sparc64 and ia64.
Add ASID_STEALING_ENABLED macro to disable the stealing part on ia64
in a clean way. |
|
| 727 |
6704 d 19 h |
jermar |
/kernel/trunk/ |
New ASID management subsystem (initial work, more is required).
Some TLB invalidation changes. |
|
| 703 |
6711 d 4 h |
jermar |
/kernel/trunk/ |
Memory management work.
- vm.* -> as.* (as like address space is, imho, more fitting)
- Don't do TLB shootdown on vm_install(). Some architectures only need to call tlb_invalidate_asid().
- Don't allocate all frames for as_area in as_area_create(), but let them be allocated on-demand by as_page_fault().
- Add high-level page fault handler as_page_fault().
- Add as_area_load_mapping(). |
|
| 700 |
6714 d 3 h |
jermar |
/kernel/trunk/arch/sparc64/include/ |
Remove fmath.h |
|
| 699 |
6714 d 4 h |
jermar |
/kernel/trunk/ |
Memory management work.
Proto-interface and dummy implementation of generic page hash table subsytem. |
|
| 691 |
6716 d 0 h |
jermar |
/kernel/trunk/arch/ |
Cleanup. |
|
| 669 |
6724 d 18 h |
jermar |
/kernel/trunk/ |
sparc64 work.
kconsole support.
Add non-blocking ofw_getchar(). |
|
| 667 |
6725 d 22 h |
jermar |
/kernel/trunk/arch/sparc64/ |
sparc64 work.
Rename saving_handler() to preemptible_handler()
and fix it to make sparc64 kernel preemptive.
Add two handlers for two fatal exceptions (i.e.
instruction_access_exception and mem_address_not_aligned.
Fix panic_printf() to not allocate its own register window. |
|
| 666 |
6727 d 19 h |
jermar |
/kernel/trunk/ |
sparc64 work.
Fix clean_window trap handler so that it clears output registers instead of input registers!
Fix interrupt handlers to save global registers. |
|
| 665 |
6728 d 5 h |
jermar |
/kernel/trunk/arch/sparc64/ |
sparc64 work.
Tick interrupt support. |
|
| 664 |
6729 d 16 h |
jermar |
/kernel/trunk/ |
sparc64 work.
Interrupt Levels 1 - 15 serviced.
Minor changes in the exc_* functions. |
|
| 658 |
6733 d 6 h |
jermar |
/kernel/trunk/arch/sparc64/include/ |
sparc64 work.
Add functions to read and write TICK and TICK_compare registers.
Add types describing TICK and TICK_compare registers. |
|
| 657 |
6733 d 18 h |
jermar |
/kernel/trunk/ |
sparc64 work.
Context again. It turns out, according to SCD 2.4, that registers that didn't have to be saved were saved (%o1 - %o5) and
registers that had to be saved were not saved (%i0 - %i5, %l0 - %l7). |
|