| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 4315 |
5676 d 5 h |
jermar |
/trunk/ |
Replace non-canonical B instructions with BA %xcc.
Fix one occurrence of deprecated Bicc instruction. |
|
| 4282 |
5682 d 15 h |
decky |
/trunk/kernel/arch/sparc64/ |
repair two glitches in memory management
(no beer today :)) |
|
| 4277 |
5683 d 9 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. |
|
| 3672 |
5813 d 5 h |
jermar |
/trunk/ |
Merge sparc branch to trunk. |
|
| 3482 |
5877 d 5 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Do not allocate full page for the uspace window buffer.
Instead, allocate only the bare minimum to fit NWINDOWS - 1
uspace windows and to satisfy alignment requirements. |
|
| 3463 |
5889 d 10 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Populate all sparc64 trap table slots belonging to trap_instruction_n. |
|
| 2610 |
6198 d 9 h |
jermar |
/trunk/ |
Support for six syscall arguments for sparc64.
There is a minor stability issue which needs to be fixed (kernel panics upon entering kconsole from the
console task). |
|
| 2231 |
6419 d 9 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. |
|
| 2089 |
6490 d 12 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2071 |
6501 d 5 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2068 |
6508 d 12 h |
jermar |
/trunk/kernel/ |
Formatting and indentation fixes. |
|
| 1978 |
6562 d 5 h |
jermar |
/trunk/ |
sparc64 code to support physical memory that starts on non-zero addresses.
Still needs to be tested on systems with such setup. |
|
| 1954 |
6584 d 4 h |
jermar |
/trunk/ |
Minor changes. Some coding style fixes and also a type (tee vs. tree).
One AS -> as change. |
|
| 1915 |
6602 d 5 h |
jermar |
/trunk/kernel/ |
A quote from from SPARC V9 specification:
The Y register is deprecated; it is provided only for compatibility with previous versions
of the architecture. It should not be used in new SPARC-V9 software. It is
recommended that all instructions that reference the Y register (i.e., SMUL,
SMULcc, UMUL, UMULcc, MULScc, SDIV, SDIVcc, UDIV, UDIVcc, RDY, and
WRY) be avoided. See the appropriate pages in Appendix A, “Instruction Definitions,”
for suitable substitute instructions.
Still gcc is generating code which uses Y and some of the instructions above.
This change modifies the preemptible_handler() to preserve the Y register
across preemption. |
|
| 1911 |
6604 d 3 h |
jermar |
/trunk/kernel/ |
Add support for interrupt mapping in the Sabre PCI controller.
Add support for PCI and EBUS interrupt mapping via the OpenFirmware device tree.
Unfortunatelly, the code is not capable enough to earn single ns16550 interrupt.
I suspect something needs to be enabled in the EBUS registers. |
|
| 1904 |
6612 d 9 h |
jermar |
/trunk/kernel/ |
IPI/cross-call support for sparc64.
SMP on sparc64 is now fully supported. |
|
| 1891 |
6622 d 3 h |
jermar |
/trunk/kernel/ |
sparc64 work:
- Experimental support for TSB (Translation Storage Buffer). |
|
| 1888 |
6626 d 8 h |
jermar |
/trunk/ |
C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64. |
|
| 1887 |
6626 d 12 h |
jermar |
/trunk/kernel/arch/sparc64/ |
When creating TLB mapping for the sparc64 kernel, enable CV (cacheable virtually) bit.
Also install locked mappings only in context 0. |
|
| 1883 |
6627 d 11 h |
jermar |
/trunk/kernel/arch/sparc64/ |
More sparc64 FPU trap handlers. |
|
| 1882 |
6627 d 12 h |
jermar |
/trunk/kernel/ |
Support for sparc64 FPU context. |
|
| 1880 |
6630 d 4 h |
jermar |
/trunk/ |
Small improvements here and there. |
|
| 1870 |
6635 d 4 h |
jermar |
/trunk/kernel/ |
Handle more sparc64 traps and improve handling of already handled traps. |
|
| 1865 |
6636 d 6 h |
jermar |
/trunk/kernel/ |
sparc64 kernel fixes |
|
| 1864 |
6637 d 2 h |
jermar |
/trunk/ |
sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64. |
|
| 1863 |
6639 d 4 h |
jermar |
/trunk/ |
Allow architectures to decide between inlined and not inlined version of syscall wrapper.
Implement inlined syscall wrapper for sparc64. |
|
| 1862 |
6639 d 8 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Kernel syscall support.
Modify the preemptive_handler for the use by syscalls. |
|
| 1861 |
6639 d 12 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Convert sparc64 traps using SIMPLE_HANDLER to using PREEMPTIBLE_HANDLER. |
|
| 1860 |
6640 d 6 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. |
|
| 1859 |
6640 d 13 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work.
- Convert interrupt_vector trap handler and some mm related trap handlers to
use preemptibe_handler(), which is essential for traps coming from userspace.
- Add fast_data_access_protection() handler. |
|
| 1856 |
6641 d 14 h |
jermar |
/trunk/kernel/ |
sparc64 work.
- Modify before_thread_runs_arch() to store addresses of the kernel stack and
userspace window buffer, resp., to registers %g6 and %g7, resp, in the
alternate and interrupt global sets.
- Modify after_thread_ran_arch() to sample %g7 from the alternate globals.
- Implement trap handler for spilling register windows into userspace window buffer.
- Implement assembly language functions to access %g6 and %g7 registers in the alternate sets.
- Initialize the trap table so that there are now also spill_1_normal, spill_2_normal,
spill_0_other and fill_1_normal handlers. These handlers are used in different situations
and for different purposes. |
|
| 1855 |
6642 d 10 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Fix bug introduced in revision 1852. When fixing CWP,
the input registers of the current window (i.e. output
registers of the window belonging to the interrupted
context) must be preserved. Preserve those registers
in memory. Sure there exist more efficient ways how to
copy the inputs.
Simplify before_thread_runs_arch(), resp. after_thread_ran_arch(),
and make them install, resp. uninstall, DTLB locked mapping for
eventual userspace window buffer. |
|
| 1854 |
6642 d 14 h |
jermar |
/trunk/kernel/ |
Define architecture-specific thread sub-constructors and sub-destructors on all architectures.
Define the THREAD_FLAG_USPACE which means that the thread runs in user space.
The forementioned changes allow for allocating of user window buffer on sparc64
threads that execute in userspace.
A lot of formatting and indentation fixes. |
|
| 1852 |
6645 d 6 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Bunch of changes in preparation for sparc64 mm and userspace support.
Fix alignment of hardcoded_* variables in linker script. |
|
| 1851 |
6650 d 12 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 |
6654 d 14 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 |
6670 d 9 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work.
Dump take_over_tlb_and_tt() and add its assembly language replacement. |
|
| 1792 |
6689 d 3 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 |
6691 d 7 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1784 |
6692 d 4 h |
jermar |
/kernel/trunk/ |
Sync OpenFirmware functionality with boot.
Random cleanup. |
|